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How far is Niagara Falls, NY, from Great Falls, MT?

The distance between Great Falls (Great Falls International Airport) and Niagara Falls (Niagara Falls International Airport) is 1597 miles / 2570 kilometers / 1388 nautical miles.

The driving distance from Great Falls (GTF) to Niagara Falls (IAG) is 1811 miles / 2915 kilometers, and travel time by car is about 34 hours 17 minutes.

Great Falls International Airport – Niagara Falls International Airport

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1597
Miles
Distance arrow
2570
Kilometers
Distance arrow
1388
Nautical miles

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Distance from Great Falls to Niagara Falls

There are several ways to calculate the distance from Great Falls to Niagara Falls. Here are two standard methods:

Vincenty's formula (applied above)
  • 1596.896 miles
  • 2569.955 kilometers
  • 1387.665 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula
  • 1592.605 miles
  • 2563.050 kilometers
  • 1383.936 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Great Falls to Niagara Falls?

The estimated flight time from Great Falls International Airport to Niagara Falls International Airport is 3 hours and 31 minutes.

Flight carbon footprint between Great Falls International Airport (GTF) and Niagara Falls International Airport (IAG)

On average, flying from Great Falls to Niagara Falls generates about 186 kg of CO2 per passenger, and 186 kilograms equals 409 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Great Falls to Niagara Falls

See the map of the shortest flight path between Great Falls International Airport (GTF) and Niagara Falls International Airport (IAG).

Airport information

Origin Great Falls International Airport
City: Great Falls, MT
Country: United States Flag of United States
IATA Code: GTF
ICAO Code: KGTF
Coordinates: 47°28′55″N, 111°22′15″W
Destination Niagara Falls International Airport
City: Niagara Falls, NY
Country: United States Flag of United States
IATA Code: IAG
ICAO Code: KIAG
Coordinates: 43°6′26″N, 78°56′46″W